Title:
COLLIMATION LENS, LIGHT IRRADIATION DEVICE, AND VEHICLE LAMP
Document Type and Number:
WIPO Patent Application WO/2018/216616
Kind Code:
A1
Abstract:
This collimation lens for a vehicle lamp comprises: an incident surface at which incident light is made into primary light that passes through the interior of the collimation lens; and an emission surface that emits secondary light parallel to the optical axis of the collimation lens. The diffusion angle of a horizontal component of the primary light is greater than the diffusion angle of a vertical-direction component of the primary light.
Inventors:
KOGURE SHINYA (JP)
Application Number:
PCT/JP2018/019305
Publication Date:
November 29, 2018
Filing Date:
May 18, 2018
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD (JP)
International Classes:
F21S41/265; F21S41/64; F21V5/04; F21V7/08; F21Y115/10; F21Y115/30
Foreign References:
| JP2012507823A | 2012-03-29 | |||
| JP2005183090A | 2005-07-07 | |||
| JP2013101881A | 2013-05-23 | |||
| JP2011243366A | 2011-12-01 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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